/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.dolphinscheduler.plugin.task.api.parameters;

import org.apache.dolphinscheduler.common.utils.JSONUtils;
import org.apache.dolphinscheduler.plugin.task.api.enums.Direct;
import org.apache.dolphinscheduler.plugin.task.api.model.Property;
import org.apache.dolphinscheduler.plugin.task.api.model.ResourceInfo;
import org.apache.dolphinscheduler.plugin.task.api.parameters.resource.ResourceParametersHelper;

import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;

/**
 * job params related class
 */
public abstract class AbstractParameters implements IParameters {
  @Override
  public abstract boolean checkParameters();

  @Override
  public List<ResourceInfo> getResourceFilesList() {
    return new ArrayList<>();
  }

  /**
   * local parameters
   */
  public List<Property> localParams;

  /**
   * var pool
   */
  public List<Property> varPool;

  /**
   * get local parameters list
   *
   * @return Property list
   */
  public List<Property> getLocalParams() {
    return localParams;
  }

  public void setLocalParams(List<Property> localParams) {
    this.localParams = localParams;
  }

  /**
   * get local parameters map
   *
   * @return parameters map
   */
  public Map<String, Property> getLocalParametersMap() {
    Map<String, Property> localParametersMaps = new LinkedHashMap<>();
    if (localParams != null) {
      for (Property property : localParams) {
        localParametersMaps.put(property.getProp(), property);
      }
    }
    return localParametersMaps;
  }

  /**
   * get input local parameters map if the param direct is IN
   *
   * @return parameters map
   */
  public Map<String, Property> getInputLocalParametersMap() {
    Map<String, Property> localParametersMaps = new LinkedHashMap<>();
    if (localParams != null) {
      for (Property property : localParams) {
        // The direct of some tasks is empty, default IN
        if (property.getDirect() == null || Objects.equals(Direct.IN, property.getDirect())) {
          localParametersMaps.put(property.getProp(), property);
        }
      }
    }
    return localParametersMaps;
  }

  /**
   * get varPool map
   *
   * @return parameters map
   */
  public Map<String, Property> getVarPoolMap() {
    Map<String, Property> varPoolMap = new LinkedHashMap<>();
    if (varPool != null) {
      for (Property property : varPool) {
        varPoolMap.put(property.getProp(), property);
      }
    }
    return varPoolMap;
  }

  public List<Property> getVarPool() {
    return varPool;
  }

  public void setVarPool(String varPool) {
    if (StringUtils.isEmpty(varPool)) {
      this.varPool = new ArrayList<>();
    } else {
      this.varPool = JSONUtils.toList(varPool, Property.class);
    }
  }

  public void dealOutParam(String result) {
    if (CollectionUtils.isEmpty(localParams)) {
      return;
    }
    List<Property> outProperty = getOutProperty(localParams);
    if (CollectionUtils.isEmpty(outProperty)) {
      return;
    }
    if (StringUtils.isEmpty(result)) {
      outProperty.forEach(this::addPropertyToValPool);
      return;
    }
    Map<String, String> taskResult = getMapByString(result);
    if (taskResult.size() == 0) {
      return;
    }
    for (Property info : outProperty) {
      String propValue = taskResult.get(info.getProp());
      if (StringUtils.isNotEmpty(propValue)) {
        info.setValue(propValue);
        addPropertyToValPool(info);
      }
    }
  }

  public List<Property> getOutProperty(List<Property> params) {
    if (CollectionUtils.isEmpty(params)) {
      return new ArrayList<>();
    }
    List<Property> result = new ArrayList<>();
    for (Property info : params) {
      if (info.getDirect() == Direct.OUT) {
        result.add(info);
      }
    }
    return result;
  }

  public List<Map<String, String>> getListMapByString(String json) {
    List<Map<String, String>> allParams = new ArrayList<>();
    ArrayNode paramsByJson = JSONUtils.parseArray(json);
    for (JsonNode jsonNode : paramsByJson) {
      Map<String, String> param = JSONUtils.toMap(jsonNode.toString());
      allParams.add(param);
    }
    return allParams;
  }

  /**
   * shell's result format is key=value$VarPool$key=value$VarPool$
   *
   * @param result
   * @return
   */
  public static Map<String, String> getMapByString(String result) {
    String[] formatResult = result.split("\\$VarPool\\$");
    Map<String, String> format = new HashMap<>();
    for (String info : formatResult) {
      if (StringUtils.isNotEmpty(info) && info.contains("=")) {
        String[] keyValue = info.split("=");
        format.put(keyValue[0], keyValue[1]);
      }
    }
    return format;
  }

  public ResourceParametersHelper getResources() {
    return new ResourceParametersHelper();
  }

  private void addPropertyToValPool(Property property) {
    varPool.removeIf(p -> p.getProp().equals(property.getProp()));
    varPool.add(property);
  }
}
